⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-16676, with some changes.
This name is a synonym of Ageratina shastensis .
The record derives from TICA which reports it as a synonym (record BF37018B-3204-479A-B5E2-1ED5D1A7B419
) with original publication details: Madroño 25 218 1978.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:100953-2
.